Results 131 to 140 of about 884,903 (262)
ABSTRACT A halogenated symmetrical formamidine, N,N′‐bis(3‐chloro‐4‐fluorophenyl)formamidine (FCF) was synthesized by the condensation reaction between triethyl orthoformate and 3‐chloro‐4‐fluoroaniline in 1:2 ratio. The compound FCF was characterized by FT‐IR, mass, NMR (1H and 13C) spectroscopic techniques and the purity was confirmed by elemental ...
Segun D. Oladipo+6 more
wiley +1 more source
Reactivity of Carbohydrate Phosphodiesters, Potential Targets of Antibacterial Agents
A simple carbohydrate phosphodiester model was synthesized to compare the reactivity of phosphodiester bonds within carbohydrates and RNA. ABSTRACT While monosaccharide units in bacterial carbohydrates may be linked with phosphodiester bonds, human carbohydrates exclusively contain glycosidic linkages.
Eero Sillanpää+2 more
wiley +1 more source
Dipolar Molecular Motor Candidates with Planar Chirality
Two prototypes of molecular motors with simultaneous implementation of planar chirality and a permanent dipole have been designed and synthesized in 7 steps with overall yields of 2.8 to 5.5%. Abstract Two molecular motor candidates built around ruthenium(II) centers featuring both planar chirality and a permanent dipole have been synthesized in seven ...
Thomas A. Hector+5 more
wiley +1 more source
Inseguridad y política: el miedo como operador estratégico en las campañas electorales en Argentina
In Argentina, insecurity has acquired political, mediatic and social relevance, and has been transformed in a recurring topic in political communication.
Nicolás S. Dallorso, Gabriela Seghezzo
doaj
CO2 methanation over Ni‐K alumina catalyst synthesized via evaporation‐induced self‐assembly to prepare ordered mesoporous alumina (Ni‐K‐OMA) catalysts and via incipient wetness impregnation (Ni‐K/Al2O3). Ni‐K‐OMA exhibited higher CH4 selectivity while Ni‐K/Al2O3 had a higher TOF.
Lizbeth Moreno Bravo, Jan Kopyscinski
wiley +1 more source
Utilizando los marcos teóricos y metodológicos de la Economía Política de la Comunicación, se identifican continuidades y rupturas en la estructura de la prensa, la radio y la televisión en Panamá.
Clara Inés Luna Vásquez
doaj
DNA films containing different CuII‐ or AgI‐mediated base pairs are investigated with respect to their electrochemical properties and how these depend on the size and charge of the artificial metal‐binding nucleobase as well as the location of the metal‐mediated base pair within the duplex.
Nils Flothkötter+4 more
wiley +1 more source
¿Dibujos inocentes? Manifestación gráfica-simbólica de alumnos universitarios en sus pupitres
En este trabajo se analizan dibujos estudiantiles hechos en pupitres por los estudiantes de la carrera de Ciencias de la Comunicación en la Universidad de Occidente, Unidad Culiacán, con una muestra de figuras y composiciones que hacen referencia a ...
José de Jesús Chávez Martínez
doaj